Iodine Reaction Lab

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The objective of today’s lab was to determine the reaction rate of iodine and determine the reaction order for H+ and acetone. In order to do this, we ran 7 reactions with HCl, I2, Water, and Acetone. Every Run had different amounts of one of the components. These reactions allowed us to calculate the reaction rates for each of the 7 trials by dividing the molarity of the I2 by the time the reaction took. Next we had to determine the reaction order which required us to put each reaction rate, except for trial I, over the reaction reaction rate of trial I, then take the natural log, and finally ivied by the natural log of 2 or 3 depending on the trial. Our experiment gave us the rate expression of rate=k [acetone]1[H+]1[I2]-1. Our equation has …show more content…
The rate law is an equation that uses experimentally determined values to show the relationship between the concentration reactants and the rate of the reaction. The rate law allows us to determine how the concentration of a reactant affect the reaction. Based on our previous knowledge, we knew that the value for C was supposed to be close to zero, however based on our previous explanation this is not true. A C value of zero means that the concentration of I2 has no affect on the reaction. Our H+ and acetone values show that their concentrations have an affect on the reaction. Both acetone and H+ have a 1 to 1 relationship when it comes to the reaction. When determining the values of A, B, and C we calculated them using two different equations. These two equations were different because one allowed us to use the reactions with three times as much of a solution and the other allowed us to use the reactions with twice the amount of solution. The values that we calculated were similar to each other, which means that we correctly measured the amount of each solution needed. These rates would have been affected if our first run was not accurate because Run I is used in every equation. When preforming this experiment, we had our Run I value checked by our professors because we wanted to limit the chances of errors. All of the Run could have been affected is the solutions were not mixed properly because

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